BTI LN-T440X6 10.8V 60WHR LI-ION BATTERY 0C52862, 45N1133, 45N1137, 45N1767, 45N1129, 45N1134, 45N1138, 45N1777, 45N1131, 45N1135, 45N1737, 68+, 45N1132, 45N1136, 45N1738, LAP5287 THINKPAD L450, L460, L470, T440, T450, T460, T550, T560, W550, X240, X250, X260, X270 - Compatible OEM: 0C52862, 45N1133, 45N1137, 45N1767, 45N1129, 45N1134, 45N1138, 45N1777, 45N1131, 45N1135, 45N1737, 68+, 45N1132, 45N1136, 45N1738, LAP5287 Model: THINKPAD L450, L460, L470, T440, T450, T460, T550, T560, W550, X2